Large Volume Inorganic Chemicals - Ammonia ... - ammk-rks.net

Chapter 66.3.2 Emission levels to airTable 6.5 shows the reported dust emission levels for the production of HF. Table 6.6 shows the reported SO 2 and HF emission levels.Emission ofkg/tonneHFRemarkReference0.05 – 0.10.01 – 0.05Average emissions from the flue-gases of directly heated driers and/or from pneumatic conveying gases,abated using cyclones and filters. The maximum average values are 0.50 kg/tonne HF, depending on theextent of pneumatic conveying and the number of storage silos (yearly average concentrations of 24 – 45mg/Nm 3 )Plant without drying section, i.e. the fluorspar has been pre-dried. The maximum value is 0.15 kg/tonneHF (yearly average concentrations of 10 – 20 mg/Nm 3 )CaF 2